Anti Flood Air Brick - Black

Fernco Anti-Flood Air Brick - Black

Our Fernco Anti-Flood Air Brick in Black is one of those products you probably won't think about every day, but when heavy rain or flooding threatens, you'll be glad it's there. Designed to look just like a standard air brick, it provides the everyday ventilation your home needs while offering an extra layer of protection against floodwater. Finished in a smart black colour, it's a great choice for contemporary homes, darker brickwork and modern renovations where you want the air brick to blend naturally into the exterior.

Inside the unit is a clever floating valve that works automatically. During normal conditions, fresh air flows freely beneath your suspended floors and through wall cavities, helping to keep your home properly ventilated and reducing the risk of damp, condensation and timber decay. If floodwater starts to rise, the valve simply lifts into place and seals the opening, helping to stop water entering through the air brick.

Once the water has gone, the valve drops back down under its own weight, allowing ventilation to continue as normal. There's nothing to switch on, no covers to fit and no complicated maintenance. It simply works in the background, ready whenever it's needed.

Whether you're replacing old air bricks, upgrading your home's flood protection or working on a new-build project, the Fernco Black Anti-Flood Air Brick offers a practical, low-maintenance solution that gives you added confidence without changing the appearance of your property.

Key Features & Benefits

• Modern black finish that complements contemporary homes and darker brickwork.
• Automatically seals when floodwater rises to help prevent water entering your property.
• Returns to normal ventilation automatically once floodwater has receded.
• Direct replacement for standard clay and plastic air bricks.
• Suitable for new-build homes, renovation projects and many listed properties.
• Removable front grille for easy inspection and maintenance.
• Integrated mesh helps prevent insects, leaves and debris entering the ventilation opening.
• Suitable for single, double and triple air brick openings.
• Manufactured from tough, weather-resistant polypropylene.
• BSI Kitemark Certified to BS 851188-1.
• Complies with BS 493:1995 for essential underfloor and cavity wall ventilation.

Protecting your home from flooding doesn't have to involve major building work or complicated systems. Sometimes, it's the simple improvements that make the biggest difference. The Fernco Black Anti-Flood Air Brick quietly gets on with its job every day, providing the airflow your home needs while standing ready to help keep floodwater out when the weather takes a turn. It's a small upgrade that can offer lasting peace of mind, especially if you live in an area that's vulnerable to flooding.

Anti Flood Air Brick Data Sheet